Deep removal of CO₂ with no environmental impacts

The release of CO₂ can proceed at room temperature requiring no heat. This is an advantage in industrial sites where steam availability is constrained. Since hydroxides are non-volatile and do not degrade, the process will not produce emissions from the solvent side (Zero-Emission). The two-step regeneration process allows the solvent to be nearly fully regenerated (Ultra-Stripping), which allows for very high capture rates (above 99% for industrial processes).

The system uses a liquid solution of hydroxide as solvent for CO₂ capture. The gas enters the absorber where CO₂ reacts with the solvent, similarly to amine-based processes. However, unlike amines, the regeneration of the solvent is not performed using heat. Our processes only uses electricity. To release the CO₂ from the solvent, an acid solution is added to the neutralization tank acid solution. Here, it is possible to produce CO₂ at high pressure saving significant compression costs in the post-treatment step. Then, the hydroxide and acid solutions are regenerated using an electro- membrane process and are sent back to the process, closing the operational loop. As the hydroxide and the acid stay in the process loop, there is no chemical consumption.